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Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
07:01

Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment

Published on: September 20, 2020

High working memory capacity predicts less retrieval induced forgetting.

Jonathan T Mall1, Candice C Morey

  • 1Department of Experimental Psychology, University of Groningen, Groningen, The Netherlands. j.t.mall@rug.nl

Plos One
|January 18, 2013
PubMed
Summary
This summary is machine-generated.

Individuals with lower working memory capacity (WMC) show more retrieval-induced forgetting (RIFO) when competition is high. Higher WMC individuals exhibit less RIFO, suggesting better focused search abilities reduce memory competition.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working Memory Capacity (WMC) is linked to executive control and focused memory search.
  • These abilities predict contrasting effects on retrieval-induced forgetting (RIFO).
  • Executive control may increase RIFO via inhibition, while focused search may decrease it by limiting competition.

Purpose of the Study:

  • To investigate how individual differences in WMC affect RIFO.
  • To test whether executive control or focused search abilities better explain RIFO.
  • To examine the role of competition and interference resolution in RIFO.

Main Methods:

  • Employed the RIFO paradigm with distinct and overlapping categories to manipulate competition.
  • Used weak exemplars to minimize output interference and integration effects.
  • Compared RIFO effects in individuals with low and high WMC.

Main Results:

  • Low WMC individuals showed RIFO within and between categories, indicating competition resolution.
  • High WMC individuals exhibited RIFO only between categories, suggesting reduced competition demands.
  • Low WMC individuals demonstrated the strongest RIFO when interference resolution demands were high.

Conclusions:

  • Findings support a qualified inhibitory explanation for RIFO, incorporating focused search for challenging materials.
  • Individual differences in WMC significantly influence retrieval-induced effects.
  • Existing models of RIFO need to account for WMC-related variations in retrieval processes.